Test Engineer (Back end) Job at Beacon Hill (Baltimore)

Job Description

The Senior Backend Data Test Engineer will be responsible for validating large-scale data systems, ensuring data accuracy, integrity, and consistency across backend platforms and corresponding frontend/UI applications. This requires deep expertise in backend database testing, ETL verification, big‑data technologies, and data quality analysis within a CMS high-priority application. The engineer will work closely with Data Coaches/Analysts/DBA and Scrum/Kanban teams to ensure alignment with program standards, backend-frontend requirements, and Agile delivery expectations.

Job Responsibility

Perform comprehensive ETL and backend data validation across big‑data technologies including Databricks, Snowflake, PostgreSQL, and related platforms
Analyze, interpret, and validate complex CMS datasets, including Shared Systems Claims, Final Action Indicator logic, Provider data, and Beneficiary data etc
Validate data sourced from CMS’s Integrated Data Repository
Conduct detailed data comparison and reconciliation between backend datasets (PostgreSQL/Snowflake) and corresponding Frontend/UI outputs and/or Databricks Unity Catalog results
Collaborate with Business Analysts, DBAs, Developers, DevOps engineers, and Scrum/Kanban teams to ensure system reliability, data accuracy, and optimal performance
Ensure adherence Testing Framework standards, organizational SDLC processes, quality procedures, and regulatory compliance requirements
Participate in functional UI validations as needed to support end‑to‑end data integrity across user-facing components
Independently develop, execute, and maintain detailed backend test plans, test cases, and validation scenarios with zero or minimal supervision
Design and execute API‑based test scenarios to validate backend services and data flows
Actively participate in Agile ceremonies

Requirements

Minimum of 5+ years of direct experience as a Backend/Data Tester
Strong expertise in backend database testing using PostgreSQL, Snowflake, and advanced SQL
Experience performing data validation within a big‑data environment (Databricks, Snowflake, etc.)
Proficiency with collaboration tools such as Jira, Confluence, and Slack
Solid experience working within Agile or SAFe methodologies
Hands‑on experience writing user stories, defect tickets, and clear acceptance criteria
Ability to create detailed test cases based on user stories and functional requirements
Strong communication skills with the ability to collaborate effectively with Product Owners, DBAs, and Developers
Proven ability to work independently, take initiative, and manage tasks with minimal direction

Nice to have

Test case and test results documentation experience using TestRail
Prior Federal, HHS or CMS experience
508 compliance testing using JAWS or similar tools
Experience with Tableau or Grafana for data visualization and monitoring
Experience performing penetration or security testing using Burp Suite or similar tools
Experience/Familiarity developing or maintaining automated test scripts using Java, Selenium, Cucumber, or similar tools
Experience integrating automated test suites into GitHub/Jenkins CI/CD pipelines

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Test Engineer (Back end)

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